Apparatus for successively separating single threads from a warp.



M. WENZEL.

APPARATUS FOR SUGGESSIVELY SBPARATING SINGLE THREADS FROM A WARP.

APPLICATION FILED MAR.13, 1914.

1,105,867. Patented Aug. 4, 1914.

3 SHEBTS'SHEET 1.

Arr-canary TE w- STATES ATE T oFrrcE.

MAXWENZEL, OF SPREMBERG, GERMANY.

APPARATUS ron sUccnssIvnLr sePAnArINe SINGLE THREADS FROM A WARE,

Specification of Letters Patent.

Patented Aug. 4, 1914;.

Application filed March 13, 1914. Serial No. 824,453.

To all whom it may concern:

Be it known that I, MAX WENZEL, a cite zen of the Empire of Germany, residing at No. 18 Miihlenstrasse, Spremberg,mK1ngdoin of Prussia Empire of Germany, have invented certain new and useful Improvementsyin Apparatus for successively Separating Single Threads 1 from a arp, of which the following is a specification.

In order to separate single threads succes'sivelyfrom awarp, use is made either of a lease, in which the devices by means of whichthe separation is effected operate alternately on opposite sides of the lease, or there are employed devices so constructed as to be capable of removingdurin each work:

ing operation only a single thread, this thread V number of shafts, 0r:in thecase of pointed uneven number of threads.

draft of the kind known as broken draft, in which the sides of the point consist of an Single-thread pickingand dividing devices, however, in order'to act effectively, require to be set in every case to correspond to the particular thicknessot' the warp threads... It is obvious therefore that they are wholly unsuitable for use not only in connection with warps composed. of fthreads of varying thickness, butalso withmulticolored or fig-, uring warps. In, the latter case, thread picking and dividingapparatus wlthout a lease cannotybe relied uponto pick or select. the threads in their proper order.

Now in accordance wlth thisinvention the lndividnal threads are successlvely separated from and moved outQof the plane of the warp by forming a shed in the manner usually employed in the drawingdn of the pattern whichsuocessively selects the threads warp through the harness. In. accordance with this method each thread to be separated is moved out of the plane of the warp by forming. the shed in accordance with a in proper sequence corresponding to the drawing-in throughthe harness whilethe remaining threads, whose turn for separa tionhas not yetcome, are pushed andheld each other in this manner pointed draft of the kind referred to and in.

back inythe direction of the plane of the warp so that when the shed is closed the separated thread is lying free for grippingby the conveying device.

The pattern mechanism employed is preferably a dobby or any other sultable shaft machine.

A constructional form of an apparatus in;

accordance with this inventionis illustrated in the accompanying drawings; in which Figure 1 is an end view of the entirear rangement, the front of the frame being i partially removed; Figs. 2 and 3. are respectively a front view and a plan of the same; Figs. 4 and 5 illustrate constructional details respectively in elevation and plan; Fig. 6 is a diagrammatic view illustr atingythe operation of the apparatus; and Figs. 7 to 10 are diagrammatlc views of portions of the mechanism in various positions.

The invention is applicable to all cases andis quite independent of the coarseness or fineness of the threads of the warp. It is however especially suitable for use inthose cases in which a smooth or plain weave without double threads cannot be formed,

that is to say in the case of harness with an uneven: number of shafts, or with pointed draft of the kind known as broken draft, the sides of which consist of an uneven number of threads or with scattered or transposed draft, in all which cases two adjacent.

threads are at certain places both situated above or below the lease bar and consequently do not cross. In the case of an uneven number of shafts the first and ilast threads of successive matchings lienext to In the case of the case of scattered or transposed draft suchpairs of threads are to be found on the I sameside of the lease-bar within the match in s. y Winnie the threads have been spoken of as raised, it is in fact immaterial whether they are moved upward or downward out of the plane of thewarp.

In Fig. 1 of the drawings there is shown by way ofexample an arrangement of five shafts s, s, s, s and 8". To enable a single thread to be separated from the lease these shafts are connected with a dobby A,

which is mounted on theupper cross-beam B. of a frame which consists of two sides C and Crigidly connected together hy means a of a lower cross-beam D and intermediat cross-beams E and E. O'nd h id C an C aremounted upright supports H H s which carry the upper cross-bearer B5. The

carries the old warp andthe latter the new Warp to be connected with it. Theold warp, together with theharness, is removed from the loom and placed 'in the connectingframe, in which the shafts are connected in the usual. manner with the parts 9 on i the. hooksh of the dobby A. The endsof the threads of the old warp maybe put into" a clamp V rigidly attached to the frame, while. forthe ends of the threads of the new warp there. may be providedlin the frame another clamp W on the other side of the piecing mechanism. The ends of the warps are brought one over'the. other, the old warp being above and the new warp shown in Fig. 1. The hooks h'of the dobby A are actuated in thejusual manner by means fss of the needles z and the cards is on the card prism Z through; which they are coupled in accordance with the pattern, to the blade m,

by means. of which they are raised The raising .of the blade is effected in the well.- known manner by means of the crank 11, on

thef d riving shaft. 'N which is rotatably mounted in the base of the frame, in bear- .ings O. and .O on the sides 0 C? and is driven by a motor. The bladeand the crank are connected together by means of a con.- necting-rod 0 pivoted to the blade at] p. An eccentric 1" on the shaftN by means of the connecting rod 6" and the lever-arm 17 mounted on theprlsm-shaft Pumparts an oscillating movement to this shaft.

in. accordance with the. draft' of the' ha'rness so that the raising'of the threads takes place in the. propersequence. In the case of apparatus having five shafts, when the draft is straight through, the threads are raised successively in the following manner In the drawingsthe first shaft, for'instance, forms the shed whereby all the first "(matching threads of the old warp are raised and consequently also that thread forming at that instant the thread subsequently to be worked of the unpieced part G of the old warp not yet operated on.

0 The part G of the old warp, which is not yet pieced, is now pushed and held back in the direction of the planeof the warpsby means of a member, such for instance, as the vertical finger, ,0 which is movable. trans-i versely to the warp-threads of the "old warp below, as Slipping.

so that by the lowering of the shaft at the closingof the shed the thread to be separated movement in the opposite. direction, the 'sep: aration of the thread being thusleffected; The thread .neXt-inorder is now raised, the

finger a pushesand holds back the unpieced portion of the old warp, and the thread F, which isto be separated-from the remainder stance, as the piecing mechanism "As shown in-Fig. 6 the threads G which'have been completely joined, are held firmlyin position in the well-known mannerby means of a suitable retaining device 6 in such m'anner as to be incapable ofinterfering with the properaction'of themechanism Q. i

' The finger ais provided at-the side remote is caused to lie in front of the finger-a to be carried along by it during itssubsequent from the threads G n'ot'yetjoined witha w I hook-like projection d (Figs. 4, .6'to'10) which prevents the gripped thread from To sum up The thread F which is next to be joined, is raised by the dobby A'in such manner as to be broughtover the path of the'finger a, which, moving in the direction of the unconnected warp threads G,

can consequently pass beneath the raised 1 thread F in order that it:maypush back the.

threads not ye connected (Fig.7); When now during that movement, of the dobby 10o whichfleffects' the closing: of 'the."shed the thread F is again brought into the plane of.

the warp (Fig. 8) it will lie in xfrontof the W finger a, that is tos'ay,'itfwill be separated from the remainder of the threadslfl The fingera: now executes its movement toward the delivering or operatingpoint Q and carries along'the thread F lying in front'of' 'it,'until this thread isLgripped' in the well- The cards 70 of the .dobby A are punched known manner, for instance, by the catch R of the mechanism Q, (Fig.9). The finger a will now repea'tiits movement to push back the warp-threads which are not: yet

ready for it, while ,the, dobby again [formsi j the shed, this time with the shaftfnext in sequence. this means the next threadv F" (Fig. 10) 1s. raised out of the planeof the.

warp and above the path of the fingera,

which now again pushes back th ;th d a; 1..-

not yet ready. When'jthe shed iscl osedthe thread F is again brought into the plane 1 of the warp so as to lie in frontofthe finger, which, during its conveying or delivering movement'will carry itlalon'g'and'transfer. I

it to the catch of the operating,mechanism;

The process. ust described is repeated in t the case of each successive thread.

The operating mechanism suchffor stance as thepiecingmechanism Q is like wise actuated from the shaft *N a number of pairs of bevel wheels 2 and 3, 4 and 5 and 6 and 7, and by the shaft 8 and 9, the latter of which actuates the transverse main shaft 10 of the piecing mechanism Q. The ratio of transmission from N to 10 is 1:1, so that the dobby and the pieoingapparatus work synchronously. The movement of the finger a is derived from the main shaft 10 of the mechanism Q, which by means of pairs of bevel wheels 11 and 12, 13 and 14 and of an intermediateshaft 15 (Figs. 4, 5) actuates a cam-shaft 16, the cam 17 of whichacts on a two-armed oscillating lever 20 pivoted on a fixed stud 19 in opposition to the action of a spring 18.; The lever 20 actuates a connecting rod 21 that slides on guides 22, 23, and to which a rectilinear movement is impartedby the cam 17 in cooperationwith the spring 18. The piecing mechanism Q can be disposed in the well-known manner on guide-rods T, T attached to the sides 0, C of the frame and its step-by-step displacement is effected by means of a screwspindle U rotatable but not axially movable in the frame and passing through a nut U on the piecing mechanism. The step-bv-step rotation of the screw-spindle is efiected from the shaft N by means of an eccentric 24, the rod 25 of which engages with a slot in the arm 26 of a lever 27 which is pivoted on thesmooth end of the screw-spindle U and the pawl 28 of which engages with the ratchet wheel 29 mounted on the end of this screw-spindle. The catch R of the piecing mechanism consists of a hook, which is rotatable in a vertical plane and is actuated by means of a cam-diskon the shaft 15 (Figs. 4: and 5).

What I claim is:

1. In an apparatus for separating single threads successively from a warp drawn in the harness, a warp beam (M) for carrying the old warp, harness (as S, S, S", S', S into which the old warp is drawn, means (A) for operating the harness, means for grippingthe thread ends of the old Warp and f r holding the old warp in a horizontal plane; a frame for receiving the warp beam, the harness-operating means and the means for holding the warp, means for operatin the harness-operating means to form a shed means for pressing back non-pieced warp threads whenthe shed is openiand for moving away the thread separated by the formation of the shed from the other threads after the shed is closed, substantially as described and shown.

2. In anapparatus for separating single threads successively from a warp drawn in the harness, a warp beam (M) for carrying the old warp, harness into which the old warp is drawn, a shaft arrangement (A) for operating the harness, means for gripping the thread ends of the old warp and for holding the old warp in a horizontal plane; a frame for receiving the warp beam, the shaft arrangement and. harness and the means for holding the warp, means for operating the shaft arrangement to form a shed, means for pressing back non-pieced warp threads when the shed is open and for moving away the thread separated by the formation of the shed from the other threads after the shed is closed, substantially as described and shown.

3. In, an: apparatus for separating single threads successively from a warp drawn in theharness, a warp beam (M) carrying the old warp, harness into which the old warp is drawn, means for operating the harness, means for grippingthe thread ends of the old warp and for holding theold warp in a horizontal plane; a frame for receiving the warp beam, the harness-operating means, the harness and the means for holding the warp, means for operating the harness-operating means to form a shed, a finger for pressing back thenon-pieced warp threads when the shed is open, means for reciproeating that finger crosswise relatively to the warp threads alternately against the nonpieced warp threads and away from them, the first motion taking place after the openingof the shed and the second after the closing thereof, substantially as described and shown.

4. In anapparatus for separating single threads successively from a warp drawn in the harness, a Warp beam (M) for carrying,

the old warp, a harness into which the old warp is drawn, a dobby (A) for operating theharness, means for gripping the thread ends of the old warp and for holding the old warp in a horizontal plane; a frame for receiving the warp beam, the dobby with the harness and the means for holding the warp, means for operating the dobby to form a shed, a finger for pressing back the non-pieced warp threads when theshed is open, means for reciprocating the said finger crosswise relatively to the warp threads, alternatingly against the non-pieced warp threads and away from them, the first motion taking place after the opening of the shed and the second after the closing thereof, and a hook at the top part of said finger for preventing the thread gripped by the finger from slipping ofl therefrom,substantially as described and shown.

In testimony whereof I affix my signature in presence of two witnesses.

MAX WENZEL.

Witnesses:

A. G. BUCHANAN, LEO BIERGHOLZ.

Copies 01. this patent may be obtained for flve cents each, by addressing the, "Commissioner 0!;2Eatenta.

Washington, 1).? 0. a 

